Pinch-bar



UNITED STATES PATENT OFFICE.

CHARLES KLAUS, OF CHICAGO, ILLINOIS.

PlNCH-BAR.

EZaPECIFICATION forming part of Letters Patent No. 317,548, dated May 12, 1885. Application filed March 27, 1885. (No model.)

To (LZZ whom it may concern:

Be it known that I, CHARLES KLAUS, a citizen of the United States, residingin Chicago, in the State of Illinois, have invented certain new and useful Improvements in Pinch-Bars, of which the following is a specification.

Figures land 2 are side elevations. ,Fig. 3 is a perspective detail of the fulcrum-block.

The nature and object of this invention is to provide a pinch-bar with an adjustable fulcrum the sides of which are provided with notched sides,-as will hereinafter appear. I construct my pinch-bar in the usual form, the novelty being in the fulcrum and its mode of action.

In the heel A is cut a slot, as indicated by the dotted lines B B, and in this slot is inserted the adjustable fulcrum C, and held therein by the pin D. The fulcrum freely revolves or works on this pin D. The sides of the fulcrum are notched or formed with teeth, as shown in Fig. 3. It is also made longer one way than the other, two of its edges or sides being at a greater distance from the cen ter than the other two.

' It will be observed that in use the bar revolves upon the pin or axis D, and the side resting on the ground or rail does not move, and the notched surface of the side prevents any slipping or yielding of the fulcrum.

In shunting a car having comparatively small wheels the fulcrum is placed on one side nearest the center hole, as shown in Fig. 1. In shunting a car having large wheels, the fulcrum is placed on one side more remote from the center, as shown in Fig. 2. This ad instability of the fulcrum allows the pinching end E of the bar to come in contact with the periphery of wheels of different diameters to the greatest possible advantage by simply turning the fulcrum so it will rest on the side required.

I claim 1. A pinch-bar provided with an adjustable fulcrum, as and for the purpose shown. 5 2. A pinch-bar provided with an adjustable 1 fulcrum having a part of its sides ata greater distance from the center thereof than the remainder of the sides, as and for the purpose shown.

3. A pinchbar provided with an adjustable fulcrum the sides or edges of which are made with notches or teeth, as and for the purpose shown.

CHARLES KL AUS.

Witnesses:

J OSEPH P. BEAN, \VILHELM 'HtiLsMANN. 

